Comparison

Ruismaker FM vs SKIIID

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ruismaker FM

Design unique percussion sounds from scratch with a flexible synthesis engine. Create everything from traditional drums to unconventional effects. Offers a standalone Euclidean sequencer for pattern creation and export options.

Highlights
  • FM synthesis engine for percussion
  • Create custom drum sounds
  • Euclidean sequencer
  • AUv3 compatible
  • No samples used
  • MIDI CC controllable
Features
Read full description

Here comes the the crazy twin-sister of Ruismaker, designed for people who want to design their own percussion sounds from scratch. Ruismaker FM's simple, yet flexible synthesis engine lets you create anything from snaredrums, kickdrums and spacy toms to weird and unconventional percussive sounds and effects. Ruismaker FM is a unique drumsynth plugin (i.e. it does not use samples), which is coupled with a creative Euclidean sequencer when run in standalone mode. The plugin is fully AUv3 (Audio Unit) compatible: - Seamless integration with Garageband and other AU hosts - Audio Unit Instrument: making music on iOS doesn't get more convenient - Supports AUv3 Multi-Out in AUM and ApeMatrix - Each sound is modeled using authentic analog and FM algorithms; - Comes with dozens of unique customizable models - Does not use any samples; all sounds are synthesized in realtime, on the fly - Light on the CPU, so you can run lots of Ruismaker FMs simultaneously - Fully automatable parameters (requires host support) and MIDI CC controllable - Has its own preset manager The standalone sequencer is refreshingly different: - Program patterns using Euclidean algorithms - Powerful random feature and mutation probability settings per channel - Syncs with Ableton Link or MIDI Clock - Exports WAV and MIDI - Compatible with Audiobus 3 (including MIDI IN/OUT mode) - CoreMIDI In and Out - AU MIDI output for on-screen pads User manual available on Ruismaker.com

About

SKIIID

This app is a percussion synthesizer designed for live performance. It features four morphing pads where finger position controls sound parameters and velocity. Explore deep sound design with a step sequencer, auto-mutation, and chaos engine for instant sound generation.

Highlights
  • Four morphing percussion pads
  • Real-time parameter control via touch
  • 16-step sequencer per pad
  • Auto-mutate sound evolution
  • Chaos engine for instant sound generation
  • AUv3 plugin support
  • MIDI input and Ableton Link sync
Features
Read full description

SKIIID is a percussion synthesizer built for real-time performance. Four pads. Each one is a sound sculpted by where your finger lands. Move left or right to morph between synth parameters. Move up or down to control velocity. Simple to play, deep to explore. — PADS — Four independent drum voices. Each pad morphs between parameter extremes based on X-axis position. Velocity is Y-axis. — STEP SEQUENCER — 16-step sequencer per pad. Variable step length for polyrhythms. Reverse playback, shuffle, pin and random step modes. Sync to Ableton Link or run free. — AUTO-MUTATE — Evolves your sound automatically. Individual interval and intensity per pad, synced to tempo. — CHAOS ENGINE — RANDOM, CHAOS, and MUTATE modes generate new sounds instantly. — AUv3 PLUGIN — Run SKIIID inside AUM, ApeMatrix, Audiobus, or any AUv3 host. Multiple instances work independently — different patches, different sequencers, no shared state. — MIDI — MIDI In for pad triggering. MIDI Learn for external controller mapping. Ableton Link for tempo sync. — WORKS ON — iPhone and iPad, all modern screen sizes. Landscape mode.

Screenshots

Ruismaker FM2 screens
SKIIID2 screens

Verdict

The call

The clearest difference is rating: Ruismaker FM at 5.0 against SKIIID's 4.4. Ruismaker FM also leads on review sentiment (83% vs 74%) and iOS requirement (11.0 vs 16.0). SKIIID's advantage is update cadence (every 4 days vs every 5 weeks) and price ($3.99 vs $4.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Ruismaker FM costs $4.99 and SKIIID $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ruismaker FM holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 54 and 31 respectively. Written reviews point the same way: 83% of Ruismaker FM's written reviews are positive against 74% of SKIIID's.

UpkeepUpdate frequency

Ruismaker FM ships an update every 5 weeks, SKIIID every 4 days. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Ruismaker FM versus SKIIID: the parameters behind the verdict, then further details
ParameterRuismaker FMSKIIID
Price$4.99$3.99 — better
Rating5.0 (54 ratings) — better4.4 (31 ratings)
Positive reviews83.3% of reviews — better73.9% of reviews
Number of ratings54 — better31
Update frequencyEvery 5 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size8 MB20 MB
Age rating4+4+
DeveloperBram BosStephan Bolch

Customer experience

Ruismaker FM

All ratings54 ratings
Positive98.1%
Neutral1.9%
Negative0.0%
Written reviews36 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

SKIIID

All ratings31 ratings
Positive83.9%
Neutral6.5%
Negative9.7%
Written reviews23 reviews
Positive73.9%
Neutral13.0%
Negative13.0%

In-app purchases

None

Ruismaker FM

No in-app purchases

None

SKIIID

No in-app purchases

Questions

Is Ruismaker FM free?
Ruismaker FM costs $4.99, with no in-app purchases.
Is SKIIID free?
SKIIID costs $3.99, with no in-app purchases.
Which has better reviews, Ruismaker FM or SKIIID?
Ruismaker FM is rated higher. Ruismaker FM averages 5.0 out of 5 from 54 ratings, while SKIIID averages 4.4 from 31 ratings.
Do Ruismaker FM or SKIIID have ads?
Neither Ruismaker FM nor SKIIID shows ads.
Which is updated more often, Ruismaker FM or SKIIID?
Ruismaker FM ships an update every 5 weeks, and SKIIID every 4 days. Most recently, Ruismaker FM was updated on September 23, 2026 and SKIIID on September 21, 2026.

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